Hanna Instruments GroLine pH/EC/TDS & Temp Monitor with Inline Probe Fluorescent Lighting On the front two simple

On the front two simple buttons control the temperature up and down

Barrel Guide with pull slide for quick opening for barrel removal with no tools

This is the preferred choice of growers

or water not containing solid particles

form webs on trees & shrubs resembling white bags made of spiderwebs

Hanna Instruments GroLine pH/EC/TDS & Temp Monitor with Inline Probe Fluorescent Lighting On the front two simpleThe Hanna Instruments GroLine pH EC TDS & Temp Monitor with Inline Probe is a quick and easy way test pH EC TDS & Temp in whatever garden setting you may find yourself in. The Hanna Instruments GroLine pH EC TDS & Temp Monitor with Inline Probe for Hydroponic Nutrients provides around the clock, continuous monitoring of pH, conductivity (EC & TDS), and temperature in hydroponic nutrient solutions. Quick to setup, simple to use, this monitor was